Prop man myself, less timing involved on peak blood levels, suspension, I dont mind it but its more work intensive and seems never to give me all that I want when I want.
Depends on what you are willing to put up with. I have had extensive experience with suspension, pretty much 4 years straight of having to deal with it. If you have access to it, make sure it is micronized, otherwise it isnt worth the efforts.
Prop is the shit!!! I would never run suspension for longer than 2 weeks cuz it's a pain in the ass. Prop is perfect for 6 weeks or so, any longer than that and I'll consider a long ester and end the run with prop. EOD injections are WAY more convenient than ED injects.
prop every day for me at the same time everynight. never tried susp. but definately like prop over test e or test c. its easier for me to stay fairly lean and dry on.